摘要: of the land in that district covered with trees and grass. A. Two fifth...is B. Two fifth...are C. Two fifths...is D. Two fifths...are [解析] 分数的分子用基数词.分母用序数词表示.如果分子大于1.序数词后加-s.分数和百分比作主语时.谓语动词的形式取决于分数和百分数后的名词.句子中的主语land是单数.所以谓语动词要用is covered.答案为C.

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